import java.util.Random;

/**
 * @author jason.tang
 * @create 2018-11-28 14:34
 * @description
 */
public class Test {

    public static void main(String[] args) {
        String[] orderNums = {"10000028", "10000029", "10000030"};
        Random random = new Random();
        int numIndex = random.nextInt(orderNums.length);
        System.out.println(orderNums[numIndex]);

        int share = random.nextInt(10000) + 1000;
        System.out.println(share);

        double price = random.nextDouble() + 1;
        double floor = Math.floor(price * 10000) / 10000;
        System.out.println(floor);
    }

}